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[英]NoSuchBeanDefinitionException: No qualifying bean of type '<package>' available: expected at least 1 bean which qualifies as autowire candidate
[英]Caused by: NoSuchBeanDefinitionException: No qualifying bean of type xxx expected at least 1 bean which qualifies as autowire candidate
我有下面的代碼如下:
package far.botshop.backend.controller;
/**
*/
import java.util.logging.Logger;
import far.botshop.backend.storage.StorageService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class FileUploadController {
private final StorageService storageService;
@Autowired
public FileUploadController(StorageService storageService) {
this.storageService = storageService;
}
並創建以下類:
package far.botshop.backend.storage;
import org.springframework.boot.context.properties.ConfigurationProperties;
@ConfigurationProperties("storage")
public class StorageProperties {
/**
* Folder location for storing files
*/
private String location = "upload-dir";
public String getLocation() {
return location;
}
public void setLocation(String location) {
this.location = location;
}
}
我認為應該容易找到StorageProperties,但是由於某些原因,我遇到了此錯誤:
UnsatisfiedDependencyException:創建文件[/home/x/workspace/botshop-backend-java/target/classes/far/botshop/backend/storage/FileSystemStorageService.class]中定義的名稱為'fileSystemStorageService'的bean時出錯:通過構造函數參數表示的不滿意依賴性0; 嵌套的異常是org.springframework.beans.factory.NoSuchBeanDefinitionException:沒有類型為'far.botshop.backend.storage.StorageProperties'的合格Bean:至少應有1個有資格作為自動裝配候選的Bean。
任何想法?
在StorageProperties類上添加@Component注釋。
您正在嘗試
@Autowired
public FileUploadController(StorageService storageService) {
this.storageService = storageService;
}
但您尚未將StorageService定義為Bean。
因此,您應該在StorageService類上添加@Component
批注或等效項。
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